Trucks don't have huge fields generally, but they still help pull a crowd.
Some mechanical failures hit the Commodore Cup with a few guys pulling out or expiring, and the 3 cars out in F3 didn't help. That said, the racing was still great, and the Biantes were a great addition to the programme - hopefully they will be back with more next year.
And as for healthy, well the fields are substantially healthier than the competition running in the "alternate" series.....